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Finding the Fourth Proportional to 239,322.67, 330,260.83 and 130,427.87

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Solution

The fourth proportional to 239,322.67, 330,260.83 and 130,427.87 is: 179,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,322.67 : 330,260.83 = 130,427.87 : x
  2. Step 2: Convert to fraction form
    239,322.67/330,260.83 = 130,427.87/x
  3. Step 3: Cross multiply
    239,322.67x = 330,260.83 × 130,427.87
  4. Step 4: Simplify right side
    239,322.67x = 43,075,214,623.96
  5. Step 5: Solve for x
    x = 43,075,214,623.96/239,322.67
  6. Step 6: Final answer
    x = 179,988.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.